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血吸虫病的各项实验研究需要大量的血吸虫尾蚴,是依靠人工感染野外采集的钉螺而取得的。随着大规模防治运动的开展,采集钉螺愈来愈困难,因而我们从1972—1973年开始人工繁殖钉螺。从比较饲养环境及食料组成着手,从产卵数、孵出率、幼螺成长及感染血吸虫尾蚴等方面考核效果,通过小型到扩大试验,第一批于1973年中,共繁殖了三代4万余只钉螺,经以血吸虫毛蚴感染,证明能比野外钉螺获得更好效果,为今后在钉螺不易采集的情况下,继续供应尾蚴,奠定了初步的基础。
Various experimental studies of schistosomiasis require a large number of schistosome cercariae, which is obtained by artificial infection of snails collected in the wild. With the large-scale prevention and control campaign carried out, collecting snails more and more difficult, so we from 1972 to 1973 artificial reproduction snail. Starting from the comparative rearing environment and the composition of foodstuffs, from the test results of egg count, hatching rate, snail growth and infection of schistosoma cercariae, through the small to extended test, the first batch of three generations 40,000 More than only snail, by Schistosome infection of miracidia, proved to be better than wild snails to obtain better results for the future snail difficult to collect the case, continue to supply cercariae, laid the initial foundation.